686314 has 8 divisors (see below), whose sum is σ = 1065060. Its totient is φ = 331296.

The previous prime is 686293. The next prime is 686317. The reversal of 686314 is 413686.

It can be written as a sum of positive squares in 2 ways, for example, as 632025 + 54289 = 795^2 + 233^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (686317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5859 + ... + 5974.

2⁶⁸⁶³¹⁴ is an apocalyptic number.

686314 is a deficient number, since it is larger than the sum of its proper divisors (378746).

686314 is a wasteful number, since it uses less digits than its factorization.

686314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11864.

The product of its digits is 3456, while the sum is 28.

The square root of 686314 is about 828.4407039734. The cubic root of 686314 is about 88.2079277397.

It can be divided in two parts, 68631 and 4, that added together give a triangular number (68635 = T₃₇₀).

The spelling of 686314 in words is "six hundred eighty-six thousand, three hundred fourteen".